git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdhf.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // High frequency commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include "proxmark3.h"
  14 #include "graph.h"
  15 #include "ui.h"
  16 #include "cmdparser.h"
  17 #include "cmdhf.h"
  18 #include "cmdhf14a.h"
  19 #include "cmdhf14b.h"
  20 #include "cmdhf15.h"
  21 #include "cmdhfepa.h"
  22 #include "cmdhflegic.h"
  23 #include "cmdhficlass.h"
  24 #include "cmdhfmf.h"
  25
  26 static int CmdHelp(const char *Cmd);
  27
  28 int CmdHFTune(const char *Cmd)
  29 {
  30   UsbCommand c={CMD_MEASURE_ANTENNA_TUNING_HF};
  31   SendCommand(&c);
  32   return 0;
  33 }
  34 // for the time being. Need better Bigbuf handling.
  35 #define TRACE_SIZE 3000
  36
  37 //The following data is taken from http://www.proxmark.org/forum/viewtopic.php?pid=13501#p13501
  38 /*
  39 ISO14443A (usually NFC tags)
  40         26 (7bits) = REQA
  41         30 = Read (usage: 30+1byte block number+2bytes ISO14443A-CRC - answer: 16bytes)
  42         A2 = Write (usage: A2+1byte block number+4bytes data+2bytes ISO14443A-CRC - answer: 0A [ACK] or 00 [NAK])
  43         52 (7bits) = WUPA (usage: 52(7bits) - answer: 2bytes ATQA)
  44         93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
  45         93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
  46         95 20 = Anticollision of cascade level2
  47         95 70 = Select of cascade level2
  48         50 00 = Halt (usage: 5000+2bytes ISO14443A-CRC - no answer from card)
  49 Mifare
  50         60 = Authenticate with KeyA
  51         61 = Authenticate with KeyB
  52         40 (7bits) = Used to put Chinese Changeable UID cards in special mode (must be followed by 43 (8bits) - answer: 0A)
  53         C0 = Decrement
  54         C1 = Increment
  55         C2 = Restore
  56         B0 = Transfer
  57 Ultralight C
  58         A0 = Compatibility Write (to accomodate MIFARE commands)
  59         1A = Step1 Authenticate
  60         AF = Step2 Authenticate
  61
  62
  63 ISO14443B
  64         05 = REQB
  65         1D = ATTRIB
  66         50 = HALT
  67 SRIX4K (tag does not respond to 05)
  68         06 00 = INITIATE
  69         0E xx = SELECT ID (xx = Chip-ID)
  70         0B = Get UID
  71         08 yy = Read Block (yy = block number)
  72         09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
  73         0C = Reset to Inventory
  74         0F = Completion
  75         0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
  76
  77
  78 ISO15693
  79         MANDATORY COMMANDS (all ISO15693 tags must support those)
  80                 01 = Inventory (usage: 260100+2bytes ISO15693-CRC - answer: 12bytes)
  81                 02 = Stay Quiet
  82         OPTIONAL COMMANDS (not all tags support them)
  83                 20 = Read Block (usage: 0220+1byte block number+2bytes ISO15693-CRC - answer: 4bytes)
  84                 21 = Write Block (usage: 0221+1byte block number+4bytes data+2bytes ISO15693-CRC - answer: 4bytes)
  85                 22 = Lock Block
  86                 23 = Read Multiple Blocks (usage: 0223+1byte 1st block to read+1byte last block to read+2bytes ISO15693-CRC)
  87                 25 = Select
  88                 26 = Reset to Ready
  89                 27 = Write AFI
  90                 28 = Lock AFI
  91                 29 = Write DSFID
  92                 2A = Lock DSFID
  93                 2B = Get_System_Info (usage: 022B+2bytes ISO15693-CRC - answer: 14 or more bytes)
  94                 2C = Read Multiple Block Security Status (usage: 022C+1byte 1st block security to read+1byte last block security to read+2bytes ISO15693-CRC)
  95
  96 EM Microelectronic CUSTOM COMMANDS
  97         A5 = Active EAS (followed by 1byte IC Manufacturer code+1byte EAS type)
  98         A7 = Write EAS ID (followed by 1byte IC Manufacturer code+2bytes EAS value)
  99         B8 = Get Protection Status for a specific block (followed by 1byte IC Manufacturer code+1byte block number+1byte of how many blocks after the previous is needed the info)
 100         E4 = Login (followed by 1byte IC Manufacturer code+4bytes password)
 101 NXP/Philips CUSTOM COMMANDS
 102         A0 = Inventory Read
 103         A1 = Fast Inventory Read
 104         A2 = Set EAS
 105         A3 = Reset EAS
 106         A4 = Lock EAS
 107         A5 = EAS Alarm
 108         A6 = Password Protect EAS
 109         A7 = Write EAS ID
 110         A8 = Read EPC
 111         B0 = Inventory Page Read
 112         B1 = Fast Inventory Page Read
 113         B2 = Get Random Number
 114         B3 = Set Password
 115         B4 = Write Password
 116         B5 = Lock Password
 117         B6 = Bit Password Protection
 118         B7 = Lock Page Protection Condition
 119         B8 = Get Multiple Block Protection Status
 120         B9 = Destroy SLI
 121         BA = Enable Privacy
 122         BB = 64bit Password Protection
 123         40 = Long Range CMD (Standard ISO/TR7003:1990)
 124                 */
 125
 126 #define ICLASS_CMD_ACTALL 0x0A
 127 #define ICLASS_CMD_READ_OR_IDENTIFY 0x0C
 128 #define ICLASS_CMD_SELECT 0x81
 129 #define ICLASS_CMD_PAGESEL 0x84
 130 #define ICLASS_CMD_READCHECK 0x88
 131 #define ICLASS_CMD_CHECK 0x05
 132 #define ICLASS_CMD_SOF 0x0F
 133 #define ICLASS_CMD_HALT 0x00
 134
 135 #define ISO14443_CMD_REQA       0x26
 136 #define ISO14443_CMD_READBLOCK  0x30
 137 #define ISO14443_CMD_WUPA       0x52
 138 #define ISO14443_CMD_ANTICOLL_OR_SELECT     0x93
 139 #define ISO14443_CMD_ANTICOLL_OR_SELECT_2   0x95
 140 #define ISO14443_CMD_WRITEBLOCK 0xA0 // or 0xA2 ?
 141 #define ISO14443_CMD_HALT       0x50
 142 #define ISO14443_CMD_RATS       0xE0
 143
 144 #define MIFARE_AUTH_KEYA            0x60
 145 #define MIFARE_AUTH_KEYB            0x61
 146 #define MIFARE_MAGICMODE            0x40
 147 #define MIFARE_CMD_INC          0xC0
 148 #define MIFARE_CMD_DEC          0xC1
 149 #define MIFARE_CMD_RESTORE      0xC2
 150 #define MIFARE_CMD_TRANSFER     0xB0
 151
 152 #define MIFARE_ULC_WRITE        0xA0
 153 #define MIFARE_ULC_AUTH_1       0x1A
 154 #define MIFARE_ULC_AUTH_2        0xAF
 155
 156 #define ISO14443B_REQB         0x05
 157 #define ISO14443B_ATTRIB       0x1D
 158 #define ISO14443B_HALT         0x50
 159
 160 //First byte is 26
 161 #define ISO15693_INVENTORY     0x01
 162 #define ISO15693_STAYQUIET     0x02
 163 //First byte is 02
 164 #define ISO15693_READBLOCK            0x20
 165 #define ISO15693_WRITEBLOCK           0x21
 166 #define ISO15693_LOCKBLOCK            0x22
 167 #define ISO15693_READ_MULTI_BLOCK     0x23
 168 #define ISO15693_SELECT               0x25
 169 #define ISO15693_RESET_TO_READY       0x26
 170 #define ISO15693_WRITE_AFI            0x27
 171 #define ISO15693_LOCK_AFI             0x28
 172 #define ISO15693_WRITE_DSFID          0x29
 173 #define ISO15693_LOCK_DSFID           0x2A
 174 #define ISO15693_GET_SYSTEM_INFO      0x2B
 175 #define ISO15693_READ_MULTI_SECSTATUS 0x2C
 176
 177
 178
 179
 180 void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 181 {
 182         switch(cmd[0])
 183         {
 184         case ISO14443_CMD_WUPA:        snprintf(exp,size,"WUPA"); break;
 185         case ISO14443_CMD_ANTICOLL_OR_SELECT:{
 186                 // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
 187                 // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
 188                 if(cmd[2] == 0x70)
 189                 {
 190                         snprintf(exp,size,"SELECT_UID"); break;
 191                 }else
 192                 {
 193                         snprintf(exp,size,"ANTICOLL"); break;
 194                 }
 195         }
 196         case ISO14443_CMD_ANTICOLL_OR_SELECT_2:{
 197                 //95 20 = Anticollision of cascade level2
 198                 //95 70 = Select of cascade level2
 199                 if(cmd[2] == 0x70)
 200                 {
 201                         snprintf(exp,size,"SELECT_UID-2"); break;
 202                 }else
 203                 {
 204                         snprintf(exp,size,"ANTICOLL-2"); break;
 205                 }
 206         }
 207         case ISO14443_CMD_REQA:       snprintf(exp,size,"REQA"); break;
 208         case ISO14443_CMD_READBLOCK:  snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
 209         case ISO14443_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
 210         case ISO14443_CMD_HALT:       snprintf(exp,size,"HALT"); break;
 211         case ISO14443_CMD_RATS:       snprintf(exp,size,"RATS"); break;
 212         case MIFARE_CMD_INC:          snprintf(exp,size,"INC(%d)",cmd[1]); break;
 213         case MIFARE_CMD_DEC:          snprintf(exp,size,"DEC(%d)",cmd[1]); break;
 214         case MIFARE_CMD_RESTORE:      snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
 215         case MIFARE_CMD_TRANSFER:     snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
 216         case MIFARE_AUTH_KEYA:        snprintf(exp,size,"AUTH-A"); break;
 217         case MIFARE_AUTH_KEYB:        snprintf(exp,size,"AUTH-B"); break;
 218         case MIFARE_MAGICMODE:        snprintf(exp,size,"MAGIC"); break;
 219         default:                      snprintf(exp,size,"?"); break;
 220         }
 221         return;
 222 }
 223
 224 void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 225 {
 226         switch(cmd[0])
 227         {
 228         case ICLASS_CMD_ACTALL:      snprintf(exp,size,"ACTALL"); break;
 229         case ICLASS_CMD_READ_OR_IDENTIFY:{
 230                 if(cmdsize > 1){
 231                         snprintf(exp,size,"READ(%d)",cmd[1]);
 232                 }else{
 233                         snprintf(exp,size,"IDENTIFY");
 234                 }
 235                 break;
 236         }
 237         case ICLASS_CMD_SELECT:      snprintf(exp,size,"SELECT"); break;
 238         case ICLASS_CMD_PAGESEL:     snprintf(exp,size,"PAGESEL"); break;
 239         case ICLASS_CMD_READCHECK:   snprintf(exp,size,"READCHECK"); break;
 240         case ICLASS_CMD_CHECK:       snprintf(exp,size,"CHECK"); break;
 241         case ICLASS_CMD_SOF:         snprintf(exp,size,"SOF"); break;
 242         case ICLASS_CMD_HALT:        snprintf(exp,size,"HALT"); break;
 243         default:                     snprintf(exp,size,"?"); break;
 244         }
 245         return;
 246 }
 247
 248 void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 249 {
 250
 251         if(cmd[0] == 0x26)
 252         {
 253                 switch(cmd[1]){
 254                 case ISO15693_INVENTORY           :snprintf(exp, size, "INVENTORY");break;
 255                 case ISO15693_STAYQUIET           :snprintf(exp, size, "STAY_QUIET");break;
 256                 default:                     snprintf(exp,size,"?"); break;
 257
 258                 }
 259         }else if(cmd[0] == 0x02)
 260         {
 261                 switch(cmd[1])
 262                 {
 263                 case ISO15693_READBLOCK            :snprintf(exp, size, "READBLOCK");break;
 264                 case ISO15693_WRITEBLOCK           :snprintf(exp, size, "WRITEBLOCK");break;
 265                 case ISO15693_LOCKBLOCK            :snprintf(exp, size, "LOCKBLOCK");break;
 266                 case ISO15693_READ_MULTI_BLOCK     :snprintf(exp, size, "READ_MULTI_BLOCK");break;
 267                 case ISO15693_SELECT               :snprintf(exp, size, "SELECT");break;
 268                 case ISO15693_RESET_TO_READY       :snprintf(exp, size, "RESET_TO_READY");break;
 269                 case ISO15693_WRITE_AFI            :snprintf(exp, size, "WRITE_AFI");break;
 270                 case ISO15693_LOCK_AFI             :snprintf(exp, size, "LOCK_AFI");break;
 271                 case ISO15693_WRITE_DSFID          :snprintf(exp, size, "WRITE_DSFID");break;
 272                 case ISO15693_LOCK_DSFID           :snprintf(exp, size, "LOCK_DSFID");break;
 273                 case ISO15693_GET_SYSTEM_INFO      :snprintf(exp, size, "GET_SYSTEM_INFO");break;
 274                 case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
 275                 default:                     snprintf(exp,size,"?"); break;
 276                 }
 277         }
 278 }
 279
 280 uint16_t printTraceLine(uint16_t tracepos, uint8_t* trace, bool iclass, bool showWaitCycles)
 281 {
 282         bool isResponse;
 283         uint16_t duration, data_len,parity_len;
 284
 285         uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
 286         char explanation[30] = {0};
 287
 288         first_timestamp = *((uint32_t *)(trace));
 289         timestamp = *((uint32_t *)(trace + tracepos));
 290         // Break and stick with current result if buffer was not completely full
 291         if (timestamp == 0x44444444) return TRACE_SIZE;
 292
 293         tracepos += 4;
 294         duration = *((uint16_t *)(trace + tracepos));
 295         tracepos += 2;
 296         data_len = *((uint16_t *)(trace + tracepos));
 297         tracepos += 2;
 298
 299         if (data_len & 0x8000) {
 300           data_len &= 0x7fff;
 301           isResponse = true;
 302         } else {
 303           isResponse = false;
 304         }
 305         parity_len = (data_len-1)/8 + 1;
 306
 307         if (tracepos + data_len + parity_len >= TRACE_SIZE) {
 308                 return TRACE_SIZE;
 309         }
 310
 311         uint8_t *frame = trace + tracepos;
 312         tracepos += data_len;
 313         uint8_t *parityBytes = trace + tracepos;
 314         tracepos += parity_len;
 315
 316         //--- Draw the data column
 317         char line[16][110];
 318         for (int j = 0; j < data_len; j++) {
 319                 int oddparity = 0x01;
 320                 int k;
 321
 322                 for (k=0 ; k<8 ; k++) {
 323                         oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
 324                 }
 325
 326                 uint8_t parityBits = parityBytes[j>>3];
 327
 328                 if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
 329                         sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
 330                 } else {
 331                         sprintf(line[j/16]+((j%16)*4), "%02x  ", frame[j]);
 332                 }
 333         }
 334         //--- Draw the CRC column
 335         bool crcError = false;
 336
 337         if (data_len > 2) {
 338                 uint8_t b1, b2;
 339                 if(iclass)
 340                 {
 341                         if(!isResponse && data_len == 4 ) {
 342                                 // Rough guess that this is a command from the reader
 343                                 // For iClass the command byte is not part of the CRC
 344                                 ComputeCrc14443(CRC_ICLASS, &frame[1], data_len-3, &b1, &b2);
 345                         }
 346                         else {
 347                                 // For other data.. CRC might not be applicable (UPDATE commands etc.)
 348                                 ComputeCrc14443(CRC_ICLASS, frame, data_len-2, &b1, &b2);
 349                         }
 350
 351                         if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
 352                                 crcError = true;
 353                         }
 354
 355                 }else{//Iso 14443a
 356
 357                         ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
 358
 359                         if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
 360                                 if(!(isResponse & (data_len < 6)))
 361                                 {
 362                                                 crcError = true;
 363                                 }
 364                         }
 365                 }
 366
 367         }
 368         char *crc = crcError ? "!crc" :"    ";
 369
 370         EndOfTransmissionTimestamp = timestamp + duration;
 371
 372         if(!isResponse)
 373         {
 374                 if(iclass)      annotateIclass(explanation,sizeof(explanation),frame,data_len);
 375                 else annotateIso14443a(explanation,sizeof(explanation),frame,data_len);
 376         }
 377
 378         int num_lines = (data_len - 1)/16 + 1;
 379         for (int j = 0; j < num_lines; j++) {
 380                 if (j == 0) {
 381                         PrintAndLog(" %9d | %9d | %s | %-64s| %s| %s",
 382                                 (timestamp - first_timestamp),
 383                                 (EndOfTransmissionTimestamp - first_timestamp),
 384                                 (isResponse ? "Tag" : "Rdr"),
 385                                 line[j],
 386                                 (j == num_lines-1) ? crc : "    ",
 387                                 (j == num_lines-1) ? explanation : "");
 388                 } else {
 389                         PrintAndLog("           |           |     | %-64s| %s| %s",
 390                                 line[j],
 391                                 (j == num_lines-1)?crc:"    ",
 392                                 (j == num_lines-1) ? explanation : "");
 393                 }
 394         }
 395
 396         bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
 397
 398         if (showWaitCycles && !isResponse && next_isResponse) {
 399                 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
 400                 if (next_timestamp != 0x44444444) {
 401                         PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
 402                                 (EndOfTransmissionTimestamp - first_timestamp),
 403                                 (next_timestamp - first_timestamp),
 404                                 "   ",
 405                                 (next_timestamp - EndOfTransmissionTimestamp));
 406                 }
 407         }
 408         return tracepos;
 409 }
 410
 411 int CmdHFList(const char *Cmd)
 412 {
 413         bool showWaitCycles = false;
 414         char type[40] = {0};
 415         int tlen = param_getstr(Cmd,0,type);
 416         char param = param_getchar(Cmd, 1);
 417         bool errors = false;
 418         bool iclass = false;
 419         //Validate params
 420         if(tlen == 0 || (strcmp(type, "iclass") != 0 && strcmp(type,"14a") != 0))
 421         {
 422                 errors = true;
 423         }
 424         if(param == 'h' || (param !=0 && param != 'f'))
 425         {
 426                 errors = true;
 427         }
 428
 429         if (errors) {
 430                 PrintAndLog("List protocol data in trace buffer.");
 431                 PrintAndLog("Usage:  hf list [14a|iclass] [f]");
 432                 PrintAndLog("    14a    - interpret data as iso14443a communications");
 433                 PrintAndLog("    iclass - interpret data as iclass communications");
 434                 PrintAndLog("    f      - show frame delay times as well");
 435                 PrintAndLog("");
 436                 PrintAndLog("example: hf list 14a f");
 437                 PrintAndLog("example: hf list iclass");
 438                 return 0;
 439         }
 440         if(strcmp(type, "iclass") == 0)
 441         {
 442                 iclass = true;
 443         }
 444
 445         if (param == 'f') {
 446                 showWaitCycles = true;
 447         }
 448
 449
 450         uint8_t trace[TRACE_SIZE];
 451         uint16_t tracepos = 0;
 452         GetFromBigBuf(trace, TRACE_SIZE, 0);
 453         WaitForResponse(CMD_ACK, NULL);
 454
 455         PrintAndLog("Recorded Activity");
 456         PrintAndLog("");
 457         PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
 458         PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
 459         PrintAndLog("iClass    - Timings are not as accurate");
 460         PrintAndLog("");
 461         PrintAndLog("     Start |       End | Src | Data (! denotes parity error)                                   | CRC | Annotation         |");
 462         PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------|-----|--------------------|");
 463
 464         while(tracepos < TRACE_SIZE)
 465         {
 466                 tracepos = printTraceLine(tracepos, trace, iclass, showWaitCycles);
 467         }
 468         return 0;
 469 }
 470
 471
 472 static command_t CommandTable[] =
 473 {
 474   {"help",        CmdHelp,          1, "This help"},
 475   {"14a",         CmdHF14A,         1, "{ ISO14443A RFIDs... }"},
 476   {"14b",         CmdHF14B,         1, "{ ISO14443B RFIDs... }"},
 477   {"15",          CmdHF15,          1, "{ ISO15693 RFIDs... }"},
 478   {"epa",         CmdHFEPA,         1, "{ German Identification Card... }"},
 479   {"legic",       CmdHFLegic,       0, "{ LEGIC RFIDs... }"},
 480   {"iclass",      CmdHFiClass,      1, "{ ICLASS RFIDs... }"},
 481   {"mf",                CmdHFMF,                1, "{ MIFARE RFIDs... }"},
 482   {"tune",        CmdHFTune,        0, "Continuously measure HF antenna tuning"},
 483   {"list",       CmdHFList,         1, "List protocol data in trace buffer"},
 484         {NULL, NULL, 0, NULL}
 485 };
 486
 487 int CmdHF(const char *Cmd)
 488 {
 489   CmdsParse(CommandTable, Cmd);
 490   return 0;
 491 }
 492
 493 int CmdHelp(const char *Cmd)
 494 {
 495   CmdsHelp(CommandTable);
 496   return 0;
 497 }